We're aiming to keep an updated tally of how Pennsylvania's superdelegates line up. In case you haven't heard, superdelegates are federal elected officials, party activists and other state political bigwigs (more info here) who make up about one in five delegates sent to the Democratic convention to select the presidential nominee. They are therefore shaping up to play a much more important role this year than in any recent election.

Of the 796 superdelegates nationwide, 30 are from Pennsylvania. The current tally: Hillary Clinton -- 11Barack Obama -- 2